Alcohol: Consuming alcohol while taking Norfen TZ Suspension may cause symptoms such as flushing, increased heart beat, nausea, thirst, chest pain and low blood pressure (Disulfiram reaction). Pregnancy: Norfen TZ Suspension may be unsafe to use during pregnancy. Although there are limited studies in humans, animal studies have shown harmful effects on the developing baby. Your doctor will weigh the benefits and any potential risks before prescribing it to you. Please consult your doctor. Breastfeeding: Norfen TZ Suspension is probably unsafe to use during breastfeeding. Limited human data suggests that the drug may pass into the breastmilk and harm the baby. Driving: Norfen TZ Suspension may cause side effects which could affect your ability to drive.Norfen TZ Suspension may make you feel drowsy or gives you problems with coordination or sensation (e.g. numbness or weakness). This may affect your driving ability. Kidney: Norfen TZ Suspension should be used with caution in patients with kidney disease. Dose adjustment of Norfen TZ Suspension may be needed. Please consult your doctor.Use of Norfen TZ Suspension is not advised in patients with severe kidney disease. Liver: Norfen TZ Suspension should be used with caution in patients with severe liver disease. Dose adjustment of Norfen TZ Suspension may be needed. Please consult your doctor.